Where is the normal input in the nodes setup in Cycles?

Andrew Price has a great tutorial here http://www.blenderguru.com/videos/the-secrets-of-realistic-texturing/.
When he adds a diffuse or glossy shader in Cycles nodes, a normal input appears in the bottom left of the shader node. However when I do it, I can only see the Colour and Roughness inputs. Is there a setting somewhere that I’m missing? Thanks in advance.

Barry

What version of blender are you using ? The current version is 2.65a

Hi Richard,

Well spotted, thanks. I had been using 2.64 but upgraded to 2.6a and the normal inputs appeared. Now I can complete that tutorial. Thanks again.

Barry